Bristol vs Cardiff
Water quality comparison
According to TapWater.uk, Bristol scores 8.7/10 and Cardiff scores 9.5/10 for drinking water quality. Cardiff has the better water.
BristolBristol Water · hard water8.7 out of 10 · 1 flagged across 23 areas · PFAS in 2CardiffDŵr Cymru Welsh Water9.5 out of 10 · 0 flagged across 9 areas
Cardiff has better water quality, by 0.7 points.
Key differences
- Safety scoreCardiff scores 0.7 points higher than Bristol.
- Contaminants flaggedBristol has 1 issues flagged vs 0 in Cardiff.
- Water supplierBristol is supplied by Bristol Water, while Cardiff uses Dŵr Cymru Welsh Water.
- PFAS detectionPFAS detected in 2 areas in Bristol vs 0 areas in Cardiff.
Top concerns by city
Bristol
- Ammonia1 area
Cardiff
No contaminants flagged
Full city reports
Bristol water reportCardiff water report
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Based on water quality data from 32 postcode districts across Bristol and Cardiff. See our methodology for how scores are calculated.